board/toradex/colibri_imx7/colibri_imx7.c

   1 /*
   2  * Copyright (C) 2016 Toradex AG
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <asm/arch/clock.h>
   8 #include <asm/arch/crm_regs.h>
   9 #include <asm/arch/imx-regs.h>
  10 #include <asm/arch/mx7-pins.h>
  11 #include <asm/arch/sys_proto.h>
  12 #include <asm/gpio.h>
  13 #include <asm/imx-common/boot_mode.h>
  14 #include <asm/imx-common/iomux-v3.h>
  15 #include <asm/imx-common/mxc_i2c.h>
  16 #include <asm/io.h>
  17 #include <common.h>
  18 #include <dm.h>
  19 #include <dm/platform_data/serial_mxc.h>
  20 #include <fsl_esdhc.h>
  21 #include <i2c.h>
  22 #include <linux/sizes.h>
  23 #include <mmc.h>
  24 #include <miiphy.h>
  25 #include <netdev.h>
  26 #include <usb/ehci-ci.h>
  27
  28 DECLARE_GLOBAL_DATA_PTR;
  29
  30 #define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | \
  31         PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)
  32
  33 #define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
  34         PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
  35
  36 #define ENET_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
  37 #define ENET_PAD_CTRL_MII  (PAD_CTL_DSE_3P3V_32OHM)
  38
  39 #define ENET_RX_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
  40
  41 #define I2C_PAD_CTRL    (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
  42         PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU100KOHM)
  43
  44 #define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \
  45         PAD_CTL_DSE_3P3V_49OHM)
  46
  47 #define NAND_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
  48
  49 #define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU5KOHM)
  50
  51 #ifdef CONFIG_SYS_I2C_MXC
  52 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
  53 /* I2C1 for PMIC */
  54 static struct i2c_pads_info i2c_pad_info1 = {
  55         .scl = {
  56                 .i2c_mode = MX7D_PAD_GPIO1_IO04__I2C1_SCL | PC,
  57                 .gpio_mode = MX7D_PAD_GPIO1_IO04__GPIO1_IO4 | PC,
  58                 .gp = IMX_GPIO_NR(1, 4),
  59         },
  60         .sda = {
  61                 .i2c_mode = MX7D_PAD_GPIO1_IO05__I2C1_SDA | PC,
  62                 .gpio_mode = MX7D_PAD_GPIO1_IO05__GPIO1_IO5 | PC,
  63                 .gp = IMX_GPIO_NR(1, 5),
  64         },
  65 };
  66 /* I2C4 for Colibri I2C */
  67 static struct i2c_pads_info i2c_pad_info4 = {
  68         .scl = {
  69                 .i2c_mode = MX7D_PAD_ENET1_RGMII_TD2__I2C4_SCL | PC,
  70                 .gpio_mode = MX7D_PAD_ENET1_RGMII_TD2__GPIO7_IO8 | PC,
  71                 .gp = IMX_GPIO_NR(7, 8),
  72         },
  73         .sda = {
  74                 .i2c_mode = MX7D_PAD_ENET1_RGMII_TD3__I2C4_SDA | PC,
  75                 .gpio_mode = MX7D_PAD_ENET1_RGMII_TD3__GPIO7_IO9 | PC,
  76                 .gp = IMX_GPIO_NR(7, 9),
  77         },
  78 };
  79 #endif
  80
  81 int dram_init(void)
  82 {
  83         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
  84
  85         return 0;
  86 }
  87
  88 static iomux_v3_cfg_t const uart1_pads[] = {
  89         MX7D_PAD_UART1_RX_DATA__UART1_DTE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  90         MX7D_PAD_UART1_TX_DATA__UART1_DTE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  91         MX7D_PAD_SAI2_TX_BCLK__UART1_DTE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL),
  92         MX7D_PAD_SAI2_TX_SYNC__UART1_DTE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL),
  93 };
  94
  95 static iomux_v3_cfg_t const usdhc1_pads[] = {
  96         MX7D_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  97         MX7D_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  98         MX7D_PAD_SD1_DATA0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  99         MX7D_PAD_SD1_DATA1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 100         MX7D_PAD_SD1_DATA2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 101         MX7D_PAD_SD1_DATA3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 102
 103         MX7D_PAD_GPIO1_IO00__GPIO1_IO0 | MUX_PAD_CTRL(NO_PAD_CTRL),
 104 };
 105
 106 #ifdef CONFIG_NAND_MXS
 107 static iomux_v3_cfg_t const gpmi_pads[] = {
 108         MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 109         MX7D_PAD_SD3_DATA1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 110         MX7D_PAD_SD3_DATA2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 111         MX7D_PAD_SD3_DATA3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 112         MX7D_PAD_SD3_DATA4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 113         MX7D_PAD_SD3_DATA5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 114         MX7D_PAD_SD3_DATA6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 115         MX7D_PAD_SD3_DATA7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 116         MX7D_PAD_SD3_CLK__NAND_CLE      | MUX_PAD_CTRL(NAND_PAD_CTRL),
 117         MX7D_PAD_SD3_CMD__NAND_ALE      | MUX_PAD_CTRL(NAND_PAD_CTRL),
 118         MX7D_PAD_SD3_STROBE__NAND_RE_B  | MUX_PAD_CTRL(NAND_PAD_CTRL),
 119         MX7D_PAD_SD3_RESET_B__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
 120         MX7D_PAD_SAI1_RX_DATA__NAND_CE1_B       | MUX_PAD_CTRL(NAND_PAD_CTRL),
 121         MX7D_PAD_SAI1_TX_BCLK__NAND_CE0_B       | MUX_PAD_CTRL(NAND_PAD_CTRL),
 122         MX7D_PAD_SAI1_TX_DATA__NAND_READY_B     | MUX_PAD_CTRL(NAND_PAD_READY0_CTRL),
 123 };
 124
 125 static void setup_gpmi_nand(void)
 126 {
 127         imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads));
 128
 129         /* NAND_USDHC_BUS_CLK is set in rom */
 130         set_clk_nand();
 131 }
 132 #endif
 133
 134 static iomux_v3_cfg_t const usdhc3_emmc_pads[] = {
 135         MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 136         MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 137         MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 138         MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 139         MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 140         MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 141         MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 142         MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 143         MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 144         MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 145         MX7D_PAD_SD3_STROBE__SD3_STROBE  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 146
 147         MX7D_PAD_SD3_RESET_B__GPIO6_IO11 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 148 };
 149
 150 #ifdef CONFIG_VIDEO_MXS
 151 static iomux_v3_cfg_t const lcd_pads[] = {
 152         MX7D_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
 153         MX7D_PAD_LCD_ENABLE__LCD_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
 154         MX7D_PAD_LCD_HSYNC__LCD_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
 155         MX7D_PAD_LCD_VSYNC__LCD_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
 156         MX7D_PAD_LCD_DATA00__LCD_DATA0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 157         MX7D_PAD_LCD_DATA01__LCD_DATA1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 158         MX7D_PAD_LCD_DATA02__LCD_DATA2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 159         MX7D_PAD_LCD_DATA03__LCD_DATA3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 160         MX7D_PAD_LCD_DATA04__LCD_DATA4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 161         MX7D_PAD_LCD_DATA05__LCD_DATA5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 162         MX7D_PAD_LCD_DATA06__LCD_DATA6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 163         MX7D_PAD_LCD_DATA07__LCD_DATA7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 164         MX7D_PAD_LCD_DATA08__LCD_DATA8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 165         MX7D_PAD_LCD_DATA09__LCD_DATA9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 166         MX7D_PAD_LCD_DATA10__LCD_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 167         MX7D_PAD_LCD_DATA11__LCD_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 168         MX7D_PAD_LCD_DATA12__LCD_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 169         MX7D_PAD_LCD_DATA13__LCD_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 170         MX7D_PAD_LCD_DATA14__LCD_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 171         MX7D_PAD_LCD_DATA15__LCD_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 172         MX7D_PAD_LCD_DATA16__LCD_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 173         MX7D_PAD_LCD_DATA17__LCD_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 174 };
 175
 176 static iomux_v3_cfg_t const backlight_pads[] = {
 177         /* Backlight On */
 178         MX7D_PAD_SD1_WP__GPIO5_IO1 | MUX_PAD_CTRL(NO_PAD_CTRL),
 179         /* Backlight PWM<A> (multiplexed pin) */
 180         MX7D_PAD_GPIO1_IO08__GPIO1_IO8   | MUX_PAD_CTRL(NO_PAD_CTRL),
 181         MX7D_PAD_ECSPI2_MOSI__GPIO4_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL),
 182 };
 183
 184 #define GPIO_BL_ON IMX_GPIO_NR(5, 1)
 185 #define GPIO_PWM_A IMX_GPIO_NR(1, 8)
 186
 187 static int setup_lcd(void)
 188 {
 189         imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
 190
 191         imx_iomux_v3_setup_multiple_pads(backlight_pads, ARRAY_SIZE(backlight_pads));
 192
 193         /* Set BL_ON */
 194         gpio_request(GPIO_BL_ON, "BL_ON");
 195         gpio_direction_output(GPIO_BL_ON, 1);
 196
 197         /* Set PWM<A> to full brightness (assuming inversed polarity) */
 198         gpio_request(GPIO_PWM_A, "PWM<A>");
 199         gpio_direction_output(GPIO_PWM_A, 0);
 200
 201         return 0;
 202 }
 203 #endif
 204
 205 #ifdef CONFIG_FEC_MXC
 206 static iomux_v3_cfg_t const fec1_pads[] = {
 207 #ifndef CONFIG_COLIBRI_IMX7_EXT_PHYCLK
 208         MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL) | MUX_MODE_SION,
 209 #else
 210         MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 211 #endif
 212         MX7D_PAD_SD2_CD_B__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
 213         MX7D_PAD_SD2_WP__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
 214         MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 215         MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 216         MX7D_PAD_ENET1_RGMII_RXC__ENET1_RX_ER | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 217         MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL   | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 218         MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 219         MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 220         MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
 221 };
 222
 223 static void setup_iomux_fec(void)
 224 {
 225         imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
 226 }
 227 #endif
 228
 229 static void setup_iomux_uart(void)
 230 {
 231         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
 232 }
 233
 234 #ifdef CONFIG_FSL_ESDHC
 235
 236 #define USDHC1_CD_GPIO  IMX_GPIO_NR(1, 0)
 237
 238 static struct fsl_esdhc_cfg usdhc_cfg[] = {
 239         {USDHC1_BASE_ADDR, 0, 4},
 240 };
 241
 242 int board_mmc_getcd(struct mmc *mmc)
 243 {
 244         struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 245         int ret = 0;
 246
 247         switch (cfg->esdhc_base) {
 248         case USDHC1_BASE_ADDR:
 249                 ret = !gpio_get_value(USDHC1_CD_GPIO);
 250                 break;
 251         }
 252
 253         return ret;
 254 }
 255
 256 int board_mmc_init(bd_t *bis)
 257 {
 258         int i, ret;
 259         /* USDHC1 is mmc0 */
 260         for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 261                 switch (i) {
 262                 case 0:
 263                         imx_iomux_v3_setup_multiple_pads(
 264                                 usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
 265                         gpio_request(USDHC1_CD_GPIO, "usdhc1_cd");
 266                         gpio_direction_input(USDHC1_CD_GPIO);
 267                         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 268                         break;
 269                 default:
 270                         printf("Warning: you configured more USDHC controllers"
 271                                 "(%d) than supported by the board\n", i + 1);
 272                         return -EINVAL;
 273                 }
 274
 275                 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
 276                 if (ret)
 277                         return ret;
 278         }
 279
 280         return 0;
 281 }
 282 #endif
 283
 284 #ifdef CONFIG_FEC_MXC
 285 int board_eth_init(bd_t *bis)
 286 {
 287         int ret;
 288
 289         setup_iomux_fec();
 290
 291         ret = fecmxc_initialize_multi(bis, 0,
 292                 CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
 293         if (ret)
 294                 printf("FEC1 MXC: %s:failed\n", __func__);
 295
 296         return ret;
 297 }
 298
 299 static int setup_fec(void)
 300 {
 301         struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
 302                 = (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
 303
 304 #ifndef CONFIG_COLIBRI_IMX7_EXT_PHYCLK
 305         /*
 306          * Use 50M anatop REF_CLK1 for ENET1, clear gpr1[13], set gpr1[17]
 307          * and output it on the pin
 308          */
 309         clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
 310                         IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK,
 311                         IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK);
 312 #else
 313         /* Use 50M external CLK for ENET1, set gpr1[13], clear gpr1[17] */
 314         clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
 315                         IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK,
 316                         IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK);
 317 #endif
 318
 319         return set_clk_enet(ENET_50MHz);
 320 }
 321
 322 int board_phy_config(struct phy_device *phydev)
 323 {
 324         if (phydev->drv->config)
 325                 phydev->drv->config(phydev);
 326         return 0;
 327 }
 328 #endif
 329
 330 int board_early_init_f(void)
 331 {
 332         setup_iomux_uart();
 333
 334 #ifdef CONFIG_SYS_I2C_MXC
 335         setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 336         setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info4);
 337 #endif
 338
 339         return 0;
 340 }
 341
 342 int board_init(void)
 343 {
 344         /* address of boot parameters */
 345         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 346
 347 #ifdef CONFIG_FEC_MXC
 348         setup_fec();
 349 #endif
 350
 351 #ifdef CONFIG_NAND_MXS
 352         setup_gpmi_nand();
 353 #endif
 354
 355 #ifdef CONFIG_VIDEO_MXS
 356         setup_lcd();
 357 #endif
 358
 359         return 0;
 360 }
 361
 362 #ifdef CONFIG_CMD_BMODE
 363 static const struct boot_mode board_boot_modes[] = {
 364         /* 4 bit bus width */
 365         {"nand", MAKE_CFGVAL(0x40, 0x34, 0x00, 0x00)},
 366         {"sd1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)},
 367         {NULL, 0},
 368 };
 369 #endif
 370
 371 int board_late_init(void)
 372 {
 373 #ifdef CONFIG_CMD_BMODE
 374         add_board_boot_modes(board_boot_modes);
 375 #endif
 376
 377         return 0;
 378 }
 379
 380 int checkboard(void)
 381 {
 382         printf("Model: Toradex Colibri iMX7%c\n",
 383                is_cpu_type(MXC_CPU_MX7D) ? 'D' : 'S');
 384
 385         return 0;
 386 }
 387
 388 #ifdef CONFIG_USB_EHCI_MX7
 389 static iomux_v3_cfg_t const usb_otg2_pads[] = {
 390         MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
 391 };
 392
 393 int board_ehci_hcd_init(int port)
 394 {
 395         switch (port) {
 396         case 0:
 397                 break;
 398         case 1:
 399                 if (is_cpu_type(MXC_CPU_MX7S))
 400                         return -ENODEV;
 401
 402                 imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
 403                                                  ARRAY_SIZE(usb_otg2_pads));
 404                 break;
 405         default:
 406                 return -EINVAL;
 407         }
 408         return 0;
 409 }
 410 #endif
 411
 412 static struct mxc_serial_platdata mxc_serial_plat = {
 413         .reg = (struct mxc_uart *)UART1_IPS_BASE_ADDR,
 414         .use_dte = true,
 415 };
 416
 417 U_BOOT_DEVICE(mxc_serial) = {
 418         .name = "serial_mxc",
 419         .platdata = &mxc_serial_plat,
 420 };